Zookeepers refuse to save drowning chimpanzee – then a truck driver breaks into his cage.

Zookeepers refuse to save drowning chimpanzee – then a truck driver breaks into his cage.

While wild animals like chimpanzees belong in their natural habitats — not zoos — one moment of bravery at the Detroit Zoo in 1990 is impossible to ignore.

A chimp named Jo-Jo fell into a moat after fleeing a more dominant chimp. As he struggled to stay afloat, Rick Swope, a 33-year-old truck driver visiting with his family, jumped into the enclosure to save him — despite warning signs and real dangers.

Chimpanzees are up to five times stronger than humans and Jo-Jo was in a restricted area surrounded by potentially aggressive chimps. Still, Rick didn’t hesitate.